UK Uncut are reported to have earned the money to take legal action against HMRC through crowd sourcing Credit: Twitter: @ukuncutlegal

Campaigners from anti-anti cuts group UK Uncut are seeking permission to launch a High Court challenge against HM Revenue and Customs (HMRC) over an alleged "sweetheart" tax deal with multinational banking giant Goldman Sachs.

The group want the court to rule that an agreement allowing Goldman Sachs to skip a multi-million pound interest bill on unpaid tax on bonuses was unlawful, and they want the £20 million allegedly involved to be returned to the public purse.

The are asking for permission to take their case to a full judicial hearing.